APA ציטוט

(1998). On-farm management of applied inputs and native soil fertility. Philippines: IRRI.

Trích dẫn kiểu Chicago

On-farm Management of Applied Inputs and Native Soil Fertility. Philippines: IRRI, 1998.

ציטוט MLA

On-farm Management of Applied Inputs and Native Soil Fertility. Philippines: IRRI, 1998.